Home/CVE/A deserialization of untrusted data vulnerability was identified in GitHub Enterprise Server that could potentially lead
CVE

CVE-2022-23734

A deserialization of untrusted data vulnerability was identified in GitHub Enterprise Server that could potentially lead

A deserialization of untrusted data vulnerability was identified in GitHub Enterprise Server that could potentially lead to remote code execution on the SVNBridge. To exploit this vulnerability, an attacker would need to gain access via a server-side request forgery (SSRF) that would let an attacker control the data being deserialized. This vulnerability affected all versions of GitHub Enterprise Server prior to v3.6 and was fixed in versions 3.5.3, 3.4.6, 3.3.11, and 3.2.16.

This vulnerability was reported via the GitHub Bug Bounty program.

HIGH · CVSS 8.8 EPSS 0.05298
Schedule remediation
  • EPSS percentile: top 10% of all CVEs by exploitation likelihood
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-502Deserialization of Untrusted Data
CWE-502Deserialization of Untrusted Data
▤

Affected Products & Versions

4
github enterprise server< 3.2.16
github enterprise server>= 3.3.0 and < 3.3.11
github enterprise server>= 3.4.0 and < 3.4.6
github enterprise server>= 3.5.0 and < 3.5.3
▣

Scoring & Timeline

8.8
HIGH · CVSS v3.1 · product-cna@github.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD19 Oct 2022 · 02:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

4
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://docs.github.com/en/enterprise-server%403.2/admin/release-notes#3.2.16
https://docs.github.com/en/enterprise-server%403.3/admin/release-notes#3.3.11
https://docs.github.com/en/enterprise-server%403.4/admin/release-notes#3.4.6
https://docs.github.com/en/enterprise-server%403.5/admin/release-notes#3.5.3
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